Answer:
x=2, y=5 or (2,5)
Step-by-step explanation:
The elimination method is adding or subtracting two equations from each other to get rid of a variable.
I am going to get rid of y first.
2y-2x=3
-2y+5x=3
When you use elimination to add and subtract, you get the equation:
3x=6
Simplify for:
x=2
There are two ways to find y. The easier way is to plug x=2 back into one of the original equations and solve, or you can use elimination again. To use elimination to find y:
First we have to make it so that our x's will add or subtract to 0 in the two original equations by multiplying.
5 * (2y-2x=3) = 10y-10x=15
2 * (-2y+5x=3) = -4y+10x=15
Adding those two equations together will give us:
6y=30
Simplify:
y=5
Answer:
15
Step-by-step explanation:
hope this helps! :D thanks!
Answers:
871
The question cut off at hundredths but Latika was right
Step-by-step explanation:
it’s c
Because you do 5n+3 times 5n+3 and you get 25n^2+9
Answer:
67 degrease
Step-by-step explanation:
angle #1 = 23
angle #2 = 90
angle #3 = ?
#1 + #2 + #3 = 180
23 + 90 + ? = 180
180 - (23 + 90) = ?
180 - 113 = ?
? = 67